He watched helplessly as his mother died an agonizing death.他无助地看着母亲痛苦地死去。Cross-currents can sweep the strongest swimmer helplessly away.即使最强壮的游泳者也会无助地被交叉水流冲走。His abrupt change of subject left her floundering helplessly....
The boat wallowed helplessly in the stormy sea.那艘船在波浪滔滔的大海中无力地颠簸行驶.She watched helplessly as her husband was dragged away.她眼睁睁地看着丈夫被拉走了。Cross-currents can sweep the strongest swimmer helplessly away.即使最强壮的游泳者也会无助地被交叉水流冲走...
在过去10年中，洁面乳、面霜以及发胶的销售已经增长了一倍。Sales of cleansing milks, creams, and gels have doubled over the past decade.许多基团可通过向得自胶的重氮盐作亲核取代而加以导入.Many groups can be added by nucleophilic substitution on a diazonium salt.这些不稳定性促使琼脂糖和琼脂...